Small magnitude 3.6 quake hits 29 miles northwest of Anchorage, Alaska, United States late at night

Published: 16 August 2025
Categories: Global Earthquake Activity

RSS feed source: Volcano Discovery.com--Global earthquake monitor

Sun, 17 Aug 2025, 06:58 | BY: EARTHQUAKEMONITOR

The United States Geological Survey reported a magnitude 3.6 quake in the United States near Anchorage, Alaska, only 7 minutes ago. The earthquake hit late at night on Saturday, August 16th, 2025, at 10:50 pm local time at a shallow depth of 18 miles. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
Our monitoring service identified a second report from The Incorporated Research Institutions for Seismology (IRIS) which listed the quake at magnitude 3.6 as well.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Susitna (pop. 18) located 9 miles from the epicenter, Big Lake (pop. 3,400) 24 miles away, Anchorage (pop. 291,200) 29 miles away, and Willow (pop. 2,100) 29 miles away. In Knik-Fairview (pop. 14,900, 35 miles away), Elmendorf Air Force Base (pop. 6,600, 36 miles away), Eagle River (pop. 24,800, 37 miles away), Eagle River (pop. 24,800, 37 miles away), Meadow Lakes (pop. 7,600, 37 miles away), and Wasilla (pop. 9,300, 41 miles away), the quake was probably not felt.

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Popocatépetl Volcano Volcanic Ash Advisory: NEW VA EMS to 22000 ft (6700 m)

Published: 16 August 2025
Categories: Global Volcano Activity

RSS feed source: Volcano Discovery.com--Global earthquake monitor

Background:

Volcán Popocatépetl, whose name is the Aztec word for smoking mountain, towers to 5426 m 70 km SE of Mexico City to form North America’s 2nd-highest volcano.  The glacier-clad stratovolcano contains a steep-walled, 250-450 m deep crater.  The generally symmetrical volcano is modified by the sharp-peaked Ventorrillo on the NW, a remnant of an earlier volcano. 
At least three previous major cones were destroyed by gravitational failure during the Pleistocene, producing massive debris-avalanche deposits covering broad areas south of the volcano.  The modern volcano was constructed to the south of the late-Pleistocene to Holocene El Fraile cone.  Three major plinian eruptions, the most recent of which took place about 800 AD, have occurred from Popocatépetl since the mid Holocene, accompanied by pyroclastic flows and voluminous lahars that swept basins below the volcano.  Frequent historical eruptions, first recorded in Aztec codices, have occurred since precolumbian

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Moderate mag. 4.0 earthquake – North Pacific Ocean, 123 km southeast of Salina Cruz, Estado de Oaxaca, Mexico, on Sunday, Aug 17, 2025, at 12:36 am (GMT -6)

Published: 16 August 2025
Categories: Global Earthquake Activity

RSS feed source: Volcano Discovery.com--Global earthquake monitor

Date and TimeMag
DepthDistanceLocationDetailsMap Aug 15, 04:19 am (GMT -6)

4.1

16 km53 km (33 mi) to the NW North Pacific Ocean, 75 km south of Salina Cruz, Estado de Oaxaca, Mexico  I FELT IT InfoAug 14, 04:22 pm (GMT -6)

4.0

18 km24 km (15 mi) to the S North Pacific Ocean, 146 km southeast of Salina Cruz, Estado de Oaxaca, Mexico  I FELT IT InfoAug 12, 04:07 pm (GMT -6)

4.0

16 km46 km (29 mi) to the SE North Pacific Ocean, 169 km southeast of Salina Cruz, Estado de Oaxaca, Mexico  I FELT IT InfoAug 12, 01:57 am (GMT -6)

4.3

16 km58 km (36 mi) to the S North Pacific Ocean, 175 km southwest of Tonala, Estado de Chiapas, Mexico  I FELT IT InfoAug 12, 01:13 am (GMT -6)

4.1

16 km50 km (31 mi) to the S North Pacific Ocean, 173 km southeast of Salina Cruz, Estado de Oaxaca, Mexico  I FELT IT InfoAug 10, 08:21 pm (GMT -6)

5.8

9.1 km47 km (29 mi) to the SE North Pacific Ocean, 250 km southwest of Tuxtla, Estado de Chiapas, Mexico  I FELT IT – 1 reportInfoJun 18, 03:49 am (GMT -6)

5.8

10 km84 km (52 mi) to the SE North Pacific Ocean, 239 km southwest of Tuxtla, Estado de Chiapas, Mexico 6 reportsInfoJul 14, 2023 03:29 am (GMT -6)

6.5

16 km71 km (44 mi) to the SE Mexico: 140 Km Al SUROESTE De PIJIJIAPAN, CHIS 114 reportsInfoOct 1, 2022 10:36 am (GMT -6)

5.6

10 km71 km (44 mi) to the SE North Pacific Ocean, 198 km west of Tapachula, Estado

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Moderate mag. 4.2 earthquake – North Pacific Ocean, 113 km south of Ciudad Lazaro Cardenas, Mexico, on Saturday, Aug 16, 2025, at 11:24 pm (GMT -7)

Published: 16 August 2025
Categories: Global Earthquake Activity

RSS feed source: Volcano Discovery.com--Global earthquake monitor

Date and TimeMag
DepthDistanceLocationDetailsMap Aug 12, 02:35 pm (GMT -7)

4.0

9.2 km84 km (52 mi) to the N Offshore Michoacan, Mexico  I FELT IT InfoMay 28, 01:16 am (GMT -7)

4.1

5 km26 km (16 mi) to the E Offshore Guerrero, Mexico InfoFeb 19, 06:35 am (GMT -7)

4.0

16 km88 km (55 mi) to the N Offshore Michoacan, Mexico InfoFeb 10, 10:07 pm (GMT -7)

4.1

16 km12 km (7.6 mi) to the N North Pacific Ocean, 102 km south of Ciudad Lazaro Cardenas, Mexico InfoJan 13, 01:48 am (GMT -7)

4.2

14 km62 km (39 mi) to the NW Mexico: 91 km al SUROESTE de LA MIRA, MICH 1 reportInfoDec 31, 2024 03:09 am (GMT -7)

4.2

22 km66 km (41 mi) to the N Mexico: 56 km al SUROESTE de LA MIRA, MICH InfoJul 9, 2024 10:51 am (GMT -7)

4.4

8.4 km67 km (42 mi) to the NE North Pacific Ocean, 64 km south of Ciudad Lazaro Cardenas, Mexico 1 reportInfoJun 16, 2024 11:51 am (GMT -7)

4.3

10 km88 km (54 mi) to the NE29 km S of Ciudad Lázaro Cárdenas, Mexico 3 reportsInfoApr 27, 2024 07:04 am (GMT -7)

4.2

10 km25 km (16 mi) to the NE97 km S of Ciudad Lázaro Cárdenas, Mexico 1 reportInfoJun 30, 2023 08:22 pm (GMT -7)

4.7

9.3 km89 km (55 mi) to the N North Pacific Ocean, 72 km west of Ciudad Lazaro Cardenas, Mexico InfoSep 19, 2022 01:05 pm (Mexico City)

7.7

15 km155 km (96 mi) to the NW North Pacific Ocean, Estado de Michoacan de Ocampo, 99 km southeast of Tecoman, Mexico 1272 reportsInfoSep 7, 2021 08:47 pm (Mexico City)

7.1

10 km282 km

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